body{
    width: 100%;
    height: 100%;
    background: url("../img/bj.png") no-repeat;
    background-size: 100% 100%;
}
.content{
    width: 100%;
    height: 100%;
    text-align: center;
}
.img_box,
.btn_box{
    width: 100%;
}
.img_box{
    margin: 40% auto .3rem auto;
}
.img_box>img{
    width: 25%;
}
.img_box>p{
    width: 100%;
    color: white;
    text-align: center;
    font-size: .16rem;
    padding: 0;
    margin: 0;
}
.btn_box>.btn>a>img{
    width: 60%;
    margin: 10px auto;
}
.btn{
    margin-bottom: .15rem;
}